CN109667835A - It is impregnated with the self-lubricating oily bearing and preparation method thereof of lubricationg jelly - Google Patents
It is impregnated with the self-lubricating oily bearing and preparation method thereof of lubricationg jelly Download PDFInfo
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- CN109667835A CN109667835A CN201910072115.4A CN201910072115A CN109667835A CN 109667835 A CN109667835 A CN 109667835A CN 201910072115 A CN201910072115 A CN 201910072115A CN 109667835 A CN109667835 A CN 109667835A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
- C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
- C10M129/26—Carboxylic acids; Salts thereof
- C10M129/28—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M129/38—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 8 or more carbon atoms
- C10M129/44—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 8 or more carbon atoms containing hydroxy groups
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
- C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
- C10M133/16—Amides; Imides
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
- C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
- C10M133/16—Amides; Imides
- C10M133/18—Amides; Imides of carbonic or haloformic acids
- C10M133/20—Ureas; Semicarbazides; Allophanates
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/102—Aliphatic fractions
- C10M2203/1025—Aliphatic fractions used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/028—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms
- C10M2205/0285—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
- C10M2207/128—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids containing hydroxy groups; Ethers thereof
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/08—Amides
- C10M2215/082—Amides containing hydroxyl groups; Alkoxylated derivatives
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/14—Containing carbon-to-nitrogen double bounds, e.g. guanidines, hydrazones, semicarbazones
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/02—Bearings
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- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lubricants (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The present invention provides a series of self-lubricating oily bearings of impregnation lubricationg jellies, including porous bearings matrix and the supermolecular gel lubricant being poured in the porous bearings matrix pore；The supermolecular gel lubricant is prepared by gelator and base lubricant.The present invention replaces the conventional lubricant in oiliness bearing using supermolecular gel lubricant.Supermolecular gel lubricant is under the action of frictional heat, liquid is changed by gel state, is oozed out from the hole of bearing, plays self-lubricating function, and the viscosity of base lubricant is greatly improved in a liquid state, reduce the generation that oiliness bearing when running at high speed gets rid of oily phenomenon；After friction, lubricationg jelly can be condensed and be stored in again in the micropore of oiliness bearing again, so as to effectively reduce the loss of the brings such as leakage or volatilization, improve the trapped fuel ability of oiliness bearing.This novel self-lubricating oiliness bearing is expected to as certain special lubricating component applications.
Description
Technical field
The present invention relates to lubrication technical field, in particular to the self-lubricating oily bearings of a series of impregnation lubricationg jellies and
Preparation method.
Background technique
Bearing is the basis of transmission, is the indispensable element of machinery industry.What application was most at present is that oiliness bearing is (more
Hole matter bearing), oiliness bearing is a kind of is not necessarily to from the i.e. workable self-lubricating material of external oil supply.Oiliness bearing mainly includes powder
Last metallurgy oiliness bearing and polymer oiliness bearing two major classes, can freely adjust quantity, size, the shape of hole in the fabrication process
Shape and distribution.
With the rapid development of science and technology, also it is evolving, is constantly progressive in terms of oiliness bearing, current oiliness bearing tool
Have the advantages that at low cost, noise is small, thermal conductivity is high, long working life, high Corrosion Protection and excellent mechanical property, extensively
It is general to be applied to aerospace, automobile, electronic equipment, the office fields such as instrument and precision machinery.
But some oiliness bearings currently on the market, when running at high speed, the lubricating oil viscosity in bearing is under
Drop, viscosity is too low to cause lubricating oil that can largely be thrown away.A large amount of losses of lubricating oil, on the one hand cause the fretting wear of bearing,
The service life of bearing is greatly reduced, another aspect lubricating oil is thrown out of or is splashed on components, may occur therewith
Reaction leads to problems such as the part hardening, expansion, softening occur, will also result in pollution.
Summary of the invention
In view of this, it is an object of that present invention to provide a kind of self-lubricating oily bearing for being impregnated with lubricationg jelly and its preparations
Method.Self-lubricating oily bearing antiwear and reducing friction performance provided by the invention is good, and loss of lubricant is small, and oil storage capacity is strong.
In order to achieve the above-mentioned object of the invention, the present invention the following technical schemes are provided:
It is a kind of be impregnated with lubricationg jelly self-lubricating oily bearing, including porous bearings matrix and be poured in it is described porous
Supermolecular gel lubricant in matter bearing matrix pore；
The supermolecular gel lubricant is prepared by the supermolecular gel factor and base lubricant, and the supermolecule is solidifying
The glue factor is one of amino acid derivativges organic micromolecule gel factor, polyhydroxy gelator and ten dihydroxystearic acids
Or it is several；
The amino acid derivativges organic micromolecule gel factor has structure shown in Formulas I:
In Formulas I, R is-H ,-CH3、
The polyhydroxy gelator has structure shown in Formula II:
Preferably, the quality of the supermolecular gel factor is the 1~10% of the supermolecular gel lubricant gross mass.
Preferably, the base lubricant includes atoleine, polyolefin, mineral oil, polyethylene glycol, more alkyl rings penta
One or more of alkane, double lipids oil and full synthetic oil.
Preferably, the porous bearings matrix is porous metals base bearing or porous polymer bearing.
The present invention provides the preparation methods of self-lubricating oily bearing described in above scheme, comprising the following steps:
(1) by the supermolecular gel factor, heating stirring is uniformly mixed it to being completely dissolved in base lubricant；
(2) under vacuum conditions, porous bearings matrix is immersed in liquid supermolecular gel lubricant, keeps liquid solidifying
Glue lubricant is immersed in bearing hole；Then, the self-lubricating that cooled to room temperature obtains impregnation lubricationg jelly contains
Oil bearing.
Preferably, the temperature heated in the step (1) is 60~150 DEG C, and the time is 5~20min.
Preferably, in the step (2) vacuum condition vacuum degree >=0.08MPa.
Preferably, the temperature impregnated in the step (2) is 80~150 DEG C, and the time is 2~3h.
Preferably, before the immersion further include: the porous bearings matrix is successively polished, cleaned and dried.
The present invention provides a kind of self-lubricating oily bearings for being impregnated with lubricationg jelly, including porous bearings matrix and filling
Infuse the supermolecular gel lubricant in the porous bearings matrix pore；The supermolecular gel lubricant is coagulated by supermolecule
The glue factor and base lubricant are prepared, and the supermolecular gel factor is amino acid derivativges organic micromolecule gel factor
One or more of (LMWGs 1~5), polyhydroxy gelator and ten dihydroxystearic acids.The present invention is solidifying using supermolecule
Glue lubricant replaces the conventional lubricant in oiliness bearing, and this supermolecular gel lubricant has special physical chemistry
Can, under the action of frictional heat, liquid is changed by gel state, to can seep from the micropore of bearing in friction process
Out, self-lubricating function is played, and greatly improves the viscosity of base lubricant in a liquid state, reduces the oil-containing when running at high speed
Bearing gets rid of the generation of oily phenomenon；After friction, supermolecular gel lubricant can condense again again and be stored in oiliness bearing
In micropore, the brings loss such as oil, leakage or volatilization is got rid of so as to effectively reduce, substantially improves the wear-resisting of oiliness bearing
Property and greasy property, improve the trapped fuel ability of oiliness bearing.Embodiment the result shows that, self-lubricating oil-containing axis provided by the invention
It holds and is compared with traditional oiliness bearing, oil storage capacity greatly improves, and has excellent antiwear and reducing friction performance.
The present invention provides the preparation method for the self-lubricating oily bearing that lubricationg jelly is impregnated with described in above scheme, this hairs
The preparation method step of bright offer is simple, easy to operate.
Detailed description of the invention
Fig. 1 loses comparison for the centrifugal mass of embodiment 1 and the iron-based oiliness bearing of the preparation of comparative example 1 under different rotating speeds
Figure；
Fig. 2 is the friction system of iron-based oiliness bearing and the oil-free blank block of iron base bearing prepared by embodiment 1 and comparative example 1
Number variation diagram；
Fig. 3 is polyimides oiliness bearing and the oil-free blank block of polyimides bearing prepared by embodiment 4 and comparative example 2
Coefficient of friction variation diagram.
Specific embodiment
The present invention provides a kind of self-lubricating oily bearings for being impregnated with lubricationg jelly, including porous bearings matrix and filling
Infuse the supermolecular gel lubricant in the porous bearings matrix pore；
The supermolecular gel lubricant is prepared by the supermolecular gel factor and base lubricant, and the supermolecule is solidifying
The glue factor is one of amino acid derivativges organic micromolecule gel factor, polyhydroxy gelator and ten dihydroxystearic acids
Or it is several.
In the present invention, the amino acid derivativges organic micromolecule gel factor has structure shown in Formulas I:
In Formulas I, R H ,-CH3、
In the present invention, when R is above-mentioned group, in the order described above, the amino acid derivativges Low Molecular-Weight Gel
The factor is successively denoted as LMWGs 1, LMWGs 2, LMWGs 3, LMWGs4 and LMWGs5.
In the present invention, the polyhydroxy gelator has structure shown in Formula II:
In the present invention, the quality of the supermolecular gel factor is preferably the supermolecular gel lubricant gross mass
1~10%, more preferably 2~6%, further preferably 2~4%.
In the present invention, the base lubricant preferably includes atoleine, polyolefin, mineral oil, polyethylene glycol, more alkane
One or more of cyclopentane, double lipids oil and synthetic oil；The polyolefin is preferably PAO10 and/or PAO40, described
Mineral oil preferably includes one or more of 500SN, 150BS and 150SN；The polyethylene glycol be preferably PEG 200 and/or
PEG400；The multi-alkyl cyclopentane is preferably MACS and/or Ultra S8；Double lipid oil are preferably A51；The full conjunction
HELIX v 30 and/or 10w-40 are preferably included at oil.
In the present invention, the porous bearings matrix is porous metals base bearing or porous polymer bearing；It is described more
Mesoporous metal base bearing is preferably porous aluminum-based bearing, porous iron-based bearing or porous copper-based bearings；The porous polymer bearing
Preferably porous polyimide bearing or porous Teflon bearing；Porous bearings matrix of the present invention be without appoint
The bearing blank block of what lubricant.The present invention does not have particular/special requirement to the size of the porous bearings matrix and aperture etc.,
Use porous bearings matrix well known to those skilled in the art.
The present invention is not special to the source of the supermolecular gel factor, base lubricant and porous bearings matrix
It is required that using commercial product.
The present invention provides the preparation methods of self-lubricating oily bearing described in above scheme, comprising the following steps:
(1) by the supermolecular gel factor, heating stirring is uniformly mixed it to being completely dissolved in base lubricant；
(2) under vacuum conditions, porous bearings matrix is immersed in liquid supermolecular gel lubricant, keeps liquid solidifying
Glue lubricant is immersed in bearing hole, and then cooled to room temperature is to obtain the self-lubricating oil-containing axis of impregnation lubricationg jelly
It holds.
By the supermolecular gel factor, the heating stirring in base lubricant is uniformly mixed it to being completely dissolved to the present invention.?
In the present invention, the temperature of the heating is preferably 60~150 DEG C, and the time is preferably 5~20min.
Porous bearings matrix is immersed in liquid supermolecular gel lubricant by the present invention under vacuum conditions.The present invention
It is preferred that the porous bearings matrix is successively polished, cleaned and is dried before immersion；The present invention preferably will be described porous
It is 0.5 μm or so that matter bearing matrix, which is polished to surface roughness,；The cleaning is preferably acetone or petroleum ether with cleaning agent；It is described
Cleaning is preferably cleaned by ultrasonic；The present invention does not have particular/special requirement to the condition of the ultrasonic cleaning, can be by bearing matrix surface
Impurity clean up；In the present invention, the time of the drying is preferably for 24 hours.
In the present invention, the vacuum degree of the vacuum condition is preferably >=0.08MPa；The time of the immersion is preferably 2
~3h, the temperature of immersion is 80~150 DEG C, and (optimum temperature of different gelators is different, true according to specific gelator
Determine soaking temperature)；The soaking process keeps temperature constant state, so that supermolecular gel lubricant remains liquid；In the present invention
Specific embodiment in, preferably the liquid supermolecular gel lubricant of preparation is placed in a vacuum drying oven, keep it is temperature-resistant,
The porous bearings matrix is immersed in liquid supermolecular gel lubricant, is then vacuumized；Immersion of the invention
It is calculated when time reaches requirement since vacuum degree.
After the completion of immersion, vacuum ovens cooled to room temperature is waited, then bearing matrix is taken out, is wiped with oil-Absorbing Sheets
Self-lubricating oily bearing of the invention can be obtained in the gel of excess surface.
The present invention immerses liquid gel lubricant in the hole of bearing matrix, in natural cooling process
Middle liquid gel lubricant reverts to gel state to get self-lubricating oily bearing of the invention is arrived.Self-lubricating provided by the invention
In use, under the action of frictional heat, intrapore supermolecular gel lubricant is changed into oiliness bearing by gel state
Liquid plays self-lubricating function, and liquid supermolecular gel lubricant viscosity is high, it is possible to reduce the oiliness bearing when running at high speed
Get rid of the generation of oily phenomenon；After friction, supermolecular gel lubricant can condense again and be stored in again the micropore of oiliness bearing
In, so as to effectively reduce the loss of the brings such as leakage or volatilization, improve the trapped fuel ability of oiliness bearing.
Scheme provided by the invention is described in detail below with reference to embodiment, but they cannot be interpreted as pair
The restriction of the scope of the present invention.
Embodiment 1
Gelator is ten dihydroxystearic acids, and base lubricant PAO10, bearing matrix is that porous iron-based bearing is oil-free
The preparation step of blank block, self-lubricating iron base oil containing bearing is as follows:
(1) by ten dihydroxystearic acids and commercial base oil PAO10 agitating and heating, until gelator is complete in base oil
The supermolecular gel lubricant of liquid can be obtained to transparent in fully dissolved, and wherein the stearic quality of dodecyl is supermolecule
The 3% of lubricationg jelly gross mass.
(2) by porous iron-based oilless bearing blank blockBeing polished to its surface roughness Ra is about 0.5 μ
M, then the dried for standby after acetone is cleaned by ultrasonic；The beaker point of liquid supermolecular gel lubricant made from step (1) will be filled
It is not put into vacuum oven, setting temperature is 100 DEG C, and the oil-free blank block of porous iron-based bearing is put into and fills liquid gel
In beaker, the lid of vacuum tank is shut, opens vacuum switch, is evacuated to pressure gauge 0.09Mpa, closes vacuum after being kept for 30 minutes
Pump, impregnates bearing material in a vacuum drying oven 3 hours, immerses liquid gel lubricant in bearing hole, is then shut off
Vacuum oven makes its cooled to room temperature, deflates and open the lid of vacuum oven, takes out sample, is wiped with oil-Absorbing Sheets
Fall the extra gel on surface to get to iron-based self-lubricating oiliness bearing, is denoted as 3%B.
Comparative example 1
Other conditions and embodiment 1 are identical, are only added without ten dihydroxystearic acids, and PAO10 is fed into porous iron standard shaft
It holds in oil-free blank block, is denoted as PAO-1.
Oil storage performance test: the oiliness bearing using TG16-WS supercentrifuge prepared by embodiment 1 and comparative example 1 into
Row centrefuge experiment evaluates its oil storage performance with this.Experiment condition are as follows: the revolving speed of centrifuge from 1000 to 6000r/min, every
15min improves 1000r/min, takes out oiliness bearing after each revolving speed and claims its quality, calculates the centrifugal mass damage under each revolving speed
It loses.
The centrifugal mass of self-lubricating oily bearing prepared by embodiment 1 and comparative example 1 under different rotating speeds loses specific
Data are as shown in table 1 and Fig. 1；The initial oil-containing of self-lubricating oily bearing prepared by embodiment 1 and comparative example 1 before centrefuge experiment
Oil content data after rate and centrefuge experiment are as shown in table 2；
Table 1: the mass loss tool of self-lubricating oily bearing prepared by embodiment 1 and comparative example 1 under different centrifugal speeds
Volume data
The initial oil content and centrifugation of self-lubricating oily bearing prepared by 2 embodiment 1 of table and comparative example 1 before centrefuge experiment
Oil content data after experiment
It can be seen that under each revolving speed according to the data in Fig. 1 and table 1, pour into the iron-based from profit of supermolecular gel
The centrifugal mass loss of sliding oiliness bearing all far smaller than pours into the iron base bearing of PAO.It can be seen from Table 2 that initially containing
Oil cut rate is identical, in the identical situation of centrefuge experiment condition, in centrifugal rotational speed from 1000 to 6000r/min, pours into oversubscription after centrifugation
The oil content of the iron-based self-lubricating oiliness bearing of sub- lubricationg jelly is far longer than the iron base bearing for pouring into PAO, pours into after centrifugation
The oil content of supermolecular gel lubricant iron-based self-lubricating oiliness bearing almost pours into 2 times of the iron base bearing of PAO.These knots
Fruit further illustrates that the mass loss of base oil can be effectively reduced in self-lubricating oily bearing provided by the invention, improves porous
The oil storage capacity of bearing.
Frictional behaviour test:
Using Stift-Scheibe-Tribometer (TRB) friction wear testing machine, the iron-based of the preparation of embodiment 1 is examined or check
Self-lubricating oily bearing, comparative example 1 prepare using PAO10 as the oiliness bearing of lubricant, the oil-free blank block of iron-based porous bearing
Tribological property under dry condition.Wherein, Stift-Scheibe-Tribometer (TRB) friction wear testing machine
The secondary contact form that rubs is that ball one is made an inventory contact, is above tried as diameter 6mm GCr15 (SAE52100) steel ball, lower examination disk is to be measured
Bearing；Test condition: TRB load: 2N/4N/6N/8N, frequency: 1Hz, stroke: 10mm, temperature: 25 DEG C, sliding circulation: 2000.
Test results are shown in figure 2, a, b, c, d in Fig. 2 respectively represent prepared by comparative example 1 under different loads with
PAO10 is the iron-based self-lubricating oil-containing axis for pouring into supermolecular gel lubricant of the oiliness bearing of lubricant, the preparation of embodiment 1
It holds, the coefficient of friction variation diagram of the oil-free blank block of iron-based porous bearing.
According to fig. 2 as can be seen that pour into the iron-based self-lubricating oiliness bearing of supermolecular gel lubricant in 2N, 4N, 6N and
Under 8N DRY SLIDING, relatively low and stable coefficient of friction is all shown；And compared with the oil-free blank block of iron-based porous bearing,
The coefficient of friction for pouring into the iron-based self-lubricating oiliness bearing of supermolecular gel lubricant is all far smaller than always blank block, about exists
0.15 or so, illustrate to fill into supermolecular gel lubricant there is no and influence the frictional behaviour of bearing, instead to a certain extent
Improve the anti-wear and wear-resistant performance of porous iron-based base bearing.
Embodiment 2~3
Other conditions and embodiment 1 are identical, and the oil-free blank block of porous iron-based bearing is only replaced with porous aluminum standard shaft respectively
Hold oil-free blank block and the oil-free blank block of porous copper-based bearings；
Quality is carried out to obtained aluminium base self-lubricating oily bearing and copper radical self-lubricating oiliness bearing according to above-mentioned method
Loss test and frictional behaviour test, test result and embodiment 1 are similar.
Embodiment 4
Gelator is ten dihydroxystearic acids, and base lubricant PAO10, bearing matrix is porous polyimide bearing
The preparation step of oil-free blank block, self-lubricating polyimides oiliness bearing is as follows:
(1) by ten dihydroxystearic acids and commercial base oil PAO10 agitating and heating, until gelator is complete in base oil
The supermolecular gel lubricant of liquid can be obtained to transparent in fully dissolved, and wherein the stearic quality of dodecyl is supermolecule
The 3% of lubricationg jelly gross mass.
(2) by the oil-free blank block of porous polyimide bearingIt is polished to its surface roughness Ra
About 0.5 μm, then the dried for standby after petroleum ether is cleaned by ultrasonic；The lubrication of liquid supermolecular gel made from step (1) will be filled
The beaker of agent is respectively put into vacuum oven, and setting temperature is 90 degree, and the oil-free blank block of porous polyimide bearing is put into
It fills in the beaker of liquid gel, shuts the lid of vacuum tank, open vacuum switch, be evacuated to pressure gauge 0.09Mpa, keep 30
Vacuum pump is closed after minute, impregnates bearing material in a vacuum drying oven 3 hours, liquid gel lubricant is made to immerse bearing hole
In gap, it is then shut off vacuum oven, makes its cooled to room temperature, deflates and open the lid of vacuum oven, takes out sample
Product wipe the extra gel on surface with oil-Absorbing Sheets to get to polyimides self-lubricating oily bearing, are denoted as 3%GEL.
Comparative example 2
Other conditions and embodiment 4 are identical, are only added without ten dihydroxystearic acids, and PAO10 is fed into porous iron standard shaft
It holds in oil-free blank block, is denoted as PAO-2.
Oil storage capacity test: the oiliness bearing according to the method for embodiment 1 prepared by embodiment 4 and comparative example 2 carry out from
Heart experiment evaluates its oil storage performance with this.Experiment condition are as follows: the revolving speed of centrifuge from 1000 to 7000r/min, every
15min improves 1000r/min, takes out oiliness bearing after each revolving speed and claims its quality, calculates the centrifugal mass damage under each revolving speed
It loses.
The centrifugal mass of self-lubricating oily bearing prepared by embodiment 4 and comparative example 2 under different rotating speeds loses specific
Data are as shown in table 3；Initial oil content of the self-lubricating oily bearing prepared by embodiment 4 and comparative example 2 before centrefuge experiment and
Oil content data after centrefuge experiment are as shown in table 4；
The mass loss of self-lubricating oily bearing prepared by embodiment 4 and comparative example 2 under the different centrifugal speeds of table 3 is specific
Data
The initial oil content and centrifugation of self-lubricating oily bearing prepared by 4 embodiment 4 of table and comparative example 2 before centrefuge experiment
Oil content data after experiment
It can be seen that under each revolving speed according to the data in table 3, the centrifugal mass of oiliness bearing prepared by embodiment 4
Loss is all far smaller than oiliness bearing prepared by comparative example 2, and oiliness bearing prepared by comparative example 2 loses under each revolving speed
Quality be about oiliness bearing loss 2 times of quality prepared by embodiment 4.It can be seen from Table 4 that initial oil content is identical
Oiliness bearing, under the conditions of identical centrefuge experiment, in centrifugal rotational speed from 1000 to 7000r/min, after centrifugation embodiment 4 make
The oil content of standby oiliness bearing is far longer than the oiliness bearing of the preparation of comparative example 2, and supermolecular gel lubricant is poured into after centrifugation
The oil content of polyimides bearing be almost 1.5 times of polyimides bearing for pouring into PAO.These results further illustrate this
Invention replaces traditional lubricant that the mass loss of base oil can be effectively reduced using supermolecular gel lubricant, improves more
The oil storage capacity of hole bearing.
Frictional behaviour test:
The oiliness bearing prepared according to the method for embodiment 1 to embodiment 4 and comparative example 2 carries out frictional behaviour test, surveys
Strip part are as follows: TRB load: 2N/4N/6N/8N, frequency: 1Hz, stroke: 10mm, temperature: 25 DEG C, sliding circulation: 1800.
Test results are shown in figure 3, a, b, c, d in Fig. 3 respectively represent prepared by comparative example 2 under different loads with
PAO10 is the polyimides self-lubricating oil-containing for pouring into supermolecular gel lubricant of the oiliness bearing of lubricant, the preparation of embodiment 4
The coefficient of friction variation diagram of bearing, the oil-free blank block of polyimide foraminous bearing.
According to Fig. 3 as can be seen that pouring into the polyimides bearing of supermolecular gel lubricant in 2N, 4N, 6N and 8N unlubricated friction
Under the conditions of wiping, relatively low and stable coefficient of friction is all shown.And compared with the oil-free blank block of polyimides bearing, pour into
The coefficient of friction of the polyimides bearing of supermolecular gel lubricant is all far smaller than always blank, should about 0.10 or so
Bearing than blank block and pours into the polyimides axis of PAO instead there is no its frictional behaviour is influenced because of filling into gel
Hold smaller more stable coefficient of friction.These results further illustrate that pouring into supermolecular gel lubricant can be in certain journey
The anti-wear and wear-resistant performance of porous polymer bearing is improved on degree.
Embodiment 5
Other conditions and embodiment 4 are identical, and the oil-free blank block of porous polyimide bearing is only replaced with porous polytetrafluoro
The oil-free blank block of ethylene bearing；
According to above-mentioned method to obtained polytetrafluoroethylene (PTFE) bearing self-lubricating oiliness bearing carry out mass loss test and
Frictional behaviour test, test result and embodiment 4 are similar.
Embodiment 6
The supermolecular gel factor is the polyhydroxy gelator with structure shown in Formula II, and base lubricant is commercial base
Oily 500SN, bearing matrix are the oil-free blank block of porous iron-based bearing, and the preparation step of self-lubricating iron base oil containing bearing is as follows:
(1) by polyhydroxy gelator and commercial base oil 500SN agitating and heating, until gelator is complete in base oil
The supermolecular gel lubricant of liquid can be obtained to transparent in fully dissolved, and wherein the quality of polyhydroxy gelator is supermolecule
The 3% of lubricationg jelly gross mass.
(2) by porous iron-based oilless bearing blank blockBeing polished to its surface roughness Ra is about 0.5 μ
M, then the dried for standby after acetone is cleaned by ultrasonic；The beaker point of liquid supermolecular gel lubricant made from step (1) will be filled
It is not put into vacuum oven, setting temperature is 120 degree, and the oil-free blank block of porous iron-based bearing is put into and fills liquid gel
In beaker, the lid of vacuum tank is shut, opens vacuum switch, is evacuated to pressure gauge 0.085Mpa, is closed after being kept for 30 minutes true
Sky pump, impregnates bearing material in a vacuum drying oven 2.5 hours, immerses liquid gel lubricant in bearing hole, then
Vacuum oven is closed, its cooled to room temperature is made, deflates and open the lid of vacuum oven, sample is taken out, uses oil suction
Paper wipes the extra gel on surface to get to iron-based self-lubricating oiliness bearing, is denoted as 3%A.
Comparative example 3
Other conditions and embodiment 6 are identical, are only added without polyhydroxy gelator, and 500SN is fed into porous iron standard shaft
It holds in oil-free blank block, is denoted as 500SN-1.
Oil storage capacity test: the oiliness bearing according to the method for embodiment 1 prepared by embodiment 6 and comparative example 3 carry out from
Heart experiment evaluates its oil storage performance with this.Experiment condition are as follows: the revolving speed of centrifuge from 1000 to 6000r/min, every
15min improves 1000r/min, takes out oiliness bearing after each revolving speed and claims its quality, calculates the centrifugal mass damage under each revolving speed
It loses.
The centrifugal mass of self-lubricating oily bearing prepared by embodiment 6 and comparative example 3 under different rotating speeds loses specific
Data are as shown in table 5；Initial oil content of the self-lubricating oily bearing prepared by embodiment 6 and comparative example 3 before centrefuge experiment and
Oil content data after centrefuge experiment are as shown in table 6；
The mass loss of self-lubricating oily bearing prepared by embodiment 6 and comparative example 3 under the different centrifugal speeds of table 5 is specific
Data
The initial oil content and centrifugation of self-lubricating oily bearing prepared by 6 embodiment 6 of table and comparative example 3 before centrefuge experiment
Oil content data after experiment
According to table 5 as can be seen that under each revolving speed, the centrifugal mass damage of the iron-based oiliness bearing of supermolecular gel is poured into
Lose the iron-based oiliness bearing for much smaller than pouring into 500SN.According to table 6 as can be seen that initial oil content is identical, centrefuge experiment item
In the identical situation of part, the oil content that the iron base bearing of supermolecular gel lubricant is poured into after centrefuge experiment, which is far longer than, to be poured into
The iron base bearing of 500SN, and the oil content that supermolecular gel lubricant iron base bearing is poured into after being centrifuged almost pours into 500SN's
2 times of iron base bearing.These results further illustrate that the present invention replaces traditional lubricant can using supermolecular gel lubricant
To efficiently reduce the mass loss of base oil, the oil storage capacity of porous bearing is improved.
Frictional behaviour test:
The oiliness bearing prepared according to the method for embodiment 1 to embodiment 6 and comparative example 3 carries out frictional behaviour test, surveys
Strip part are as follows: TRB load: 2N/4N/6N/8N, frequency: 1Hz, stroke: 10mm, temperature: 25 DEG C, sliding circulation: 2000.
Acquired results are as shown in table 7.
Table 7: the oil-free blank block of iron base bearing, oil-containing iron base bearing and iron base bearing containing gel being averaged under different loads
Coefficient of friction
According to table 7 as can be seen that pouring into the iron base bearing of supermolecular gel lubricant in 2N, 4N, 6N and 8N unlubricated friction rub piece
Under part, relatively low coefficient of friction is all shown.And compared with the oil-free blank block of no iron base bearing, supermolecular gel is poured into
The coefficient of friction of the iron base bearing of lubricant is much smaller than blank, about 0.14 or so, illustrates porous metals base bearing not
Having influences its frictional behaviour because of filling into gel, and the antifriction for improving porous metals base bearing to a certain extent instead is anti-
Grind performance.
Embodiment 7~8
Other conditions and embodiment 6 are identical, and the oil-free blank block of porous iron-based bearing is only replaced with porous aluminum standard shaft respectively
Hold oil-free blank block and the oil-free blank block of porous copper-based bearings；
Quality is carried out to obtained aluminium base self-lubricating oily bearing and copper radical self-lubricating oiliness bearing according to above-mentioned method
Loss test and frictional behaviour test, test result and embodiment 6 are similar.
Embodiment 9
The supermolecular gel factor is the amino acid derivativges organic micromolecule gel factor LMWGs with structure shown in Formulas I
1, base lubricant is to be commercially synthesized oily HELIX v30, and bearing matrix is the oil-free blank block of porous polyimide bearing, self-lubricating
The preparation step of polyimides oiliness bearing is as follows:
(1) by amino acid derivativges organic micromolecule gel factor LMWGs 1 and HELIX v30 agitating and heating, Zhi Daoning
The glue factor is completely dissolved in base oil, liquid supermolecular gel lubricant can be obtained, wherein amino acid derivativges are organic small
The quality of molecular gel factor LMWGs 1 is the 3% of supermolecular gel lubricant gross mass.
(2) by the oil-free blank block of porous polyimide bearingIt is polished to its surface roughness Ra
About 0.5 μm, then the dried for standby after acetone is cleaned by ultrasonic；Step (1) will be filled, liquid supermolecular gel lubricant is made
Beaker is respectively put into vacuum oven, and setting temperature is 80 degree, is then put into the oil-free blank block of porous polyimide bearing
It fills in the beaker of liquid gel, shuts the lid of vacuum tank, open vacuum switch, be evacuated to pressure gauge 0.09Mpa, keep 30
Vacuum pump is closed after minute, impregnates bearing material in a vacuum drying oven 2.5 hours, liquid gel lubricant is made to immerse bearing
In hole, it is then shut off vacuum oven, makes its cooled to room temperature, deflates and open the lid of vacuum oven, is taken out
Sample wipes the extra gel on surface with oil-Absorbing Sheets to get to polyimides self-lubricating oily bearing, is denoted as 3%H.
Comparative example 4
Other conditions and embodiment 9 are identical, are only added without amino acid derivativges organic micromolecule gel factor LMWGs 1,
Oily HELIX v30 will be commercially synthesized to be fed into the oil-free blank block of porous polyimide bearing, be denoted as HE-1.
Oil storage capacity test: the oiliness bearing according to the method for embodiment 1 prepared by embodiment 9 and comparative example 4 carry out from
Heart experiment evaluates its oil storage performance with this.Experiment condition are as follows: the revolving speed of centrifuge from 1000 to 7000r/min, every
15min improves 1000r/min, takes out oiliness bearing after each revolving speed and claims its quality, calculates the centrifugal mass damage under each revolving speed
It loses.
The centrifugal mass of self-lubricating oily bearing prepared by embodiment 9 and comparative example 4 under different rotating speeds loses specific
Data are as shown in table 8；Initial oil content of the self-lubricating oily bearing prepared by embodiment 9 and comparative example 4 before centrefuge experiment and
Oil content data after centrefuge experiment are as shown in table 9；
The mass loss of self-lubricating oily bearing prepared by embodiment 9 and comparative example 4 under the different centrifugal speeds of table 8 is specific
Data
The initial oil content and centrifugation of self-lubricating oily bearing prepared by 9 embodiment 9 of table and comparative example 4 before centrefuge experiment
Oil content data after experiment
According to table 8 as can be seen that under each revolving speed, the centrifugal mass damage of the polyimides bearing of supermolecular gel is poured into
The polyimides bearing for all far smaller than pouring into HELIX v 30 is lost, pours into the polyimides bearing of HELIX v30 oil each
The quality lost under revolving speed about pours into 2 times of the polyimides bearing loss quality of supermolecular gel lubricant.According to table 9
As can be seen that initial oil content is identical, in the identical situation of centrefuge experiment condition, supermolecular gel lubricant is poured into after centrifugation
Polyimides bearing oil content be far longer than pour into oil polyimides bearing, after centrifugation pour into supermolecular gel lubrication
The oil content of the polyimides bearing of agent is almost 1.5 times for pouring into oily polyimides bearing.These results further illustrate
The present invention replaces traditional lubricant that the mass loss of base oil can be effectively reduced using supermolecular gel lubricant, improves
The oil storage capacity of porous bearing.
Frictional behaviour test:
The oiliness bearing prepared according to the method for embodiment 1 to embodiment 9 and comparative example 4 carries out frictional behaviour test, surveys
Strip part are as follows: TRB load: 2N/4N/6N/8N, frequency: 1Hz, stroke: 10mm, temperature: 25 DEG C, sliding circulation: 2000.
Acquired results are as shown in table 10.
Table 10: the oil-free blank block of polyimides bearing, oil-containing polyimides bearing and the bearing of polyimides containing gel be not
With the average friction coefficient under load
According to table 10 as can be seen that pouring into the polyimides bearing of supermolecular gel lubricant in 2N, 4N, 6N and 8N unlubricated friction
Under the conditions of wiping, relatively low coefficient of friction is all shown.And compared with the oil-free blank block of polyimides bearing, supermolecule is poured into
The coefficient of friction of the polyimides bearing of lubricationg jelly is much smaller than blank, about 0.12 or so, illustrates the porous polymeric
Object bearing improves porous polymer axis there is no its frictional behaviour is influenced because of filling into gel to a certain extent instead
The anti-wear and wear-resistant performance held.
Embodiment 10
Other conditions and embodiment 9 are identical, only change gelator into amino acid derivativges organic micromolecule gel factor
The oil-free blank block of porous polyimide bearing is replaced with the oil-free blank block of porous Teflon bearing by LMWGs 2；
According to above-mentioned method to obtained polytetrafluoroethylene (PTFE) bearing self-lubricating oiliness bearing carry out mass loss test and
Frictional behaviour test, test result and embodiment 9 are similar.
Embodiment 11~13
Other conditions and embodiment 4 are identical, and the quality for only controlling ten dihydroxystearic acids is changed to supermolecular gel profit respectively
1%, 5% and the 10% of lubrication prescription gross mass；
Mass loss test is carried out to obtained polyimides bearing self-lubricating oiliness bearing according to above-mentioned method and is rubbed
Performance test is wiped, test result and embodiment 4 are similar.
As can be seen from the above embodiments, self-lubricating oily bearing antiwear and reducing friction performance provided by the invention is good, lubricant
Lose small, oil storage capacity is strong, has broad application prospects in lubricating area, is expected to be applied to the special lubricating components such as gear.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (9)
1. a kind of self-lubricating oily bearing for being impregnated with lubricationg jelly, which is characterized in that including porous bearings matrix and perfusion
Supermolecular gel lubricant in the porous bearings matrix pore；
The supermolecular gel lubricant is prepared by the supermolecular gel factor and base lubricant, the supermolecular gel because
Son is one of amino acid derivativges organic micromolecule gel factor, polyhydroxy gelator and ten dihydroxystearic acids or several
Kind；
The amino acid derivativges organic micromolecule gel factor has structure shown in Formulas I:
In Formulas I, R is-H ,-CH3、
The polyhydroxy gelator has structure shown in Formula II:
2. self-lubricating oily bearing according to claim 1, which is characterized in that the quality of the supermolecular gel factor is
The 1~10% of the supermolecular gel lubricant gross mass.
3. self-lubricating oily bearing according to claim 1, which is characterized in that the base lubricant includes liquid stone
One or more of wax, polyolefin, mineral oil, polyethylene glycol, multi-alkyl cyclopentane, double lipids oil and full synthetic oil.
4. self-lubricating oily bearing according to claim 1, which is characterized in that the porous bearings matrix is porous gold
Belong to base bearing or porous polymer bearing.
5. the preparation method of self-lubricating oily bearing described in Claims 1 to 4 any one, which is characterized in that including following step
It is rapid:
(1) by the supermolecular gel factor, heating stirring is uniformly mixed it to being completely dissolved in base lubricant；
(2) under vacuum conditions, porous bearings matrix is immersed in liquid supermolecular gel lubricant, moistens liquid gel
Lubrication prescription is immersed in bearing hole；Then, cooled to room temperature is to obtain the self-lubricating oily bearing of impregnation lubricationg jelly.
6. preparation method according to claim 5, which is characterized in that the temperature heated in the step (1) is 60~150
DEG C, the time is 5~20min.
7. preparation method according to claim 5, which is characterized in that the vacuum degree of vacuum condition in the step (2) >=
0.08MPa。
8. preparation method according to claim 5, which is characterized in that the temperature impregnated in the step (2) is 80~150
DEG C, the time is 2~3h.
9. preparation method according to claim 5, which is characterized in that before the immersion further include: by the Porous axis
Matrix is held successively to be polished, cleaned and dried.
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| CN115637185B (en) * | 2022-10-18 | 2023-07-25 | 西北工业大学 | Ti (titanium) 3 C 2 T x Modified supermolecular gel lubricant and preparation method thereof |
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